From Oath of office – Wikipedia, the free encyclopedia

For other officials, including members of Congress, it specifies they “shall be bound by Oath or Affirmation to support this constitution.” At the start of each new U.S. Congress, in January of every odd-numbered year, those newly elected or re-elected Congressmen – the entire House of Representatives and one-third of the Senate – must recite an oath:

I do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter: So help me God.

I wonder if we could try the entire Congress for malfeasance?